William halley



(No Model.) 2 SheetsS11eet 1.

W. HALLEY, H. P. WILKINSON & J. E. BISSETT. OVERPLOW GATE-FOR RESERVOIRS.

No. 349,712. Patented Sept. 28, 1886.

"MM M26024 (No Model.) 7 2 Sheets- Sheet 2.

W. HALLEY, H. F. WILKINSON 82; J. E. BISSBTT OVERFLOW GATE FOR RESBRVOIRS.

No. 349,712. I PatentedSept. 28,1886.

N. PETERS. HM mmpheh Wnhilvglon, I). Q

UNITED STATES PATENT OFFICE.

WILLIAM HA LLEY, HENRY FRANKLIN WILKINSON, AND JAMES EASTMAN BISSETT, OF AUBURN, CALIFORNIA.

' OVERFLOW-GATE J Application filed J nnc 1], 1886.

To all whom it may concern:

Be it known that we, WILLIAM HALLEY, HENRY FRANKLIN WILKINSON, and JAMES EASTMAN BISSETT, citizens of the United 5 States, residing at Auburn, in the county of Placer and State of California, have invented a new and useful Improvement in Overflow- Gates for Reservoirs, of which the following is a specification.

[ Our invention relates to an improvement in overflow-gates for reservoirs; and it consists in the peculiar construction and combination of devices that will be more fully set forth hereinafter, and particularly pointed out in I the claim.

In the drawings, Figure 1 is a top plan view of our invention. Fig. 2 is a sectional view of the same, taken on the line 00 a." of Fig. 1.

A represents the reservoir, and B represents the flume or gateway extending therefrom.

0 represents a vertical tilting gate, which is located near the inner end of the flume, and is pivoted between the side walls thereof by means of a shaft or trunnions, D, which are located at a distance of about one-third the height, of the gate from the bottom. The lower end of the gate is weighted on the inner side thereof, as at E, the said weight counterbalancing the gate and serving to keep it normally closed.

F represents a rock-shaft, which is journaled horizontally between the side walls of the flume, and is provided with rearward-extending arms F, the under sides of which have shoulders F that bear against the outer side of the gate at the upper end thereof, and thereby normally lock the said gate when closed. The arms F extend rearwardly from 0 the upper end of the gate for a considerable distance, and the rock-shaft F is located, at a suitable distance in front of the gate. On the inner ends of the side walls of the flume are vertical guideways G.

H represents a horizontal transverse shaft, which is secured in and guided vertically by the guideways G, the said shaft extending across the inner end of the flume and ,7

FOR RESERVOIRS.

SPECIFICATION forming part of Letters Patent No. 349,712, dated September 28 1886.

Serial No. 204,893. (No model.)

bearing under the rear ends of the arms F. To the ends of the shaft H are attached 5o floats I.

The operation of our invention is as follows: The water is permitted to rise in the reservoir until it reachesthe floats I, when the shaft H is raised, thereby lifting the rear ends of the latching arms F, and causing -the shoulders or detents on the under sides of the said arms to disengage the upper end of the gate. The pressure of the water against the gate overcomes the gravity of the weight E, and causes the gate to tilt outwardly to the position indicated in dotted lines in Fig. 2, thereby permitting the water to escape from the reservoir until its level is lowered to the shaft or trunnions D,when the pressure 6 5 of the water is released from the upper portion of the gate, causing the weight to counterbalance the gate and bring its lower portion in position to be operated upon by the current of outflowing water, thereby causing the gate 7c toreassume its normal vertical position. As soon as the gate is closed, the latching-arms automatically drop upon the upper end thereof and lock'it in position, when the reservoir is again permitted to be filled and automatically discharged, as before.

A gate thus constructed is adapted to discharge the reservoir when it becomes filled with water to the point of overflowing, thus preventing too great a quantity of water from accumulating in the reservoir, and avoiding the danger of floods.

The-apparatus will be found extremely useful for flooding water-courses in order to float logs or wood from lumber districts, and for P 5 removing debris and any obstructions" from mines.

Having thus described our invention, we claim- The combination, with the flume, of the 0 tilting gate pivoted therein, and having the weight E at its lower end to counterbalance the upper end of the gate and keep the latter normally closed in a vertical position, the latching arm or arms bearing on the upper 5 end of the gate to lock the same when closed,

the vertical guideways G, at the inner end our own we have hereto affixedour signa of the frame, the shaft H, Working inthe said tures in presence of two witnesses.

guideways,'and the floats (one or more) at- WILLIAM HA'LLEY. tached to the said shaft to raise the latter as HENRY FRANKLIN WILKINSON. 5 the Water rises, to trip the latch and release JAMES EASTMAN BISSETT.

the gate, for the purpose set forth, substan- Witnesses: tiaily as described. JAMES H. BREsLIN,

In testimony that we claim the foregoing as E. P. TUTTLE. 

